Expansion of e.g.f. exp(C(x)^2 - 1) where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers, A000108.

A250916

Expansion of e.g.f. exp(C(x)^2 - 1) where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers, A000108.

Terms

    a(0) =1a(1) =2a(2) =14a(3) =152a(4) =2236a(5) =41512a(6) =930904a(7) =24474368a(8) =738241424a(9) =25132379552a(10) =953267419744

External references